Number of the records: 1
Mapping of thermal plasma jet non-linear dynnamics in reconstructed phase space
- 1.
SYSNO ASEP 0330203 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Mapping of thermal plasma jet non-linear dynnamics in reconstructed phase space Title Mapování nelineární dynamiky proudu plazmatu v rekonstruovaném fázovém prostoru Author(s) Gruber, Jan (UT-L) RID, ORCID
Hlína, Jan (UT-L) RID
Šonský, Jiří (UT-L) RIDSource Title Journal of Plasma and Fusion Research SERIES - ISSN 1883-9630
Roč. 8, č. 2009 (2009), s. 900-905Number of pages 6 s. Publication form CD ROM - CD ROM Action International Congress on Plasma Physics /14./ Event date 08.09.2008-12.09.2008 VEvent location Fukuoka Country JP - Japan Event type WRD Language eng - English Country JP - Japan Keywords thermal plasma ; correlation dimension ; non-linear dynamics Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20570509 - UE-C, UT-L (2005-2011) Annotation Thermal plasma jet optical radiation was observed by arrays of optical fibers and by a high-speed CCD camera. We then use the method of time-embeddings for reconstruction of dc plasma torch dynamics in the reconstructed phase space. Different properties of the plasma flow dynamics and dependence of this dynamics on input conditions (gas flow rate) are then described. We focused on non-linear and chaotic phenomena and tried to estimate the correlation dimension related to the (supposed) strange attractor of the dynamics. Sufficient spatial resolution allowed us to map the distribution of this estimated correlation dimension in different areas of the plasma jet and to compare it with the distribution of significant oscillations. This offers alternative method to describe the dynamics and provides strong tool for the analysis of the stability of plasma torch working conditions. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2010
Number of the records: 1